private void OnClick(bool isCtrl, bool isLeft)
{
var hitNode = HitTest(Canvas.MouseInWorld);
if (hitNode == null)
{
Selecteds.Clear();
}
else
{
if (!isLeft && !ReadOnly)
{
if (Graph.CheckOutput(hitNode) && MouseInPin(GetOutputPin(hitNode)))
{
BreakOutputLink(hitNode);
ignoreRightUp = true;
return;
}
if (Graph.ChechInput(hitNode) && MouseInPin(GetInputPin(hitNode)))
{
BreakInputLink(hitNode);
ignoreRightUp = true;
return;
}
if (Graph.IsStack(hitNode) && GetAddChildPinRect(hitNode).Contains(Canvas.MouseInWorld))
{
BreakChildLink(hitNode);
ignoreRightUp = true;
return;
}
}
bool hasSelected = Selecteds.Contains(hitNode);
if (!isCtrl)
{
if (hasSelected && Selecteds.Count > 0)
{
do
{
if (isLeft && !ReadOnly)
{
Rect rect = GetAddChildPinRect(hitNode);
if (Graph.IsStack(hitNode) && rect.Contains(Canvas.MouseInWorld))
{
DragMode = new ViewLinkMode(hitNode, true, true, rect.center);
break;
}
Vector2 center = GetOutputPin(hitNode);
if (Graph.CheckOutput(hitNode) && MouseInPin(center))
{
DragMode = new ViewLinkMode(hitNode, true, false, center);
break;
}
center = GetInputPin(hitNode);
if (Graph.ChechInput(hitNode) && MouseInPin(center))
{
DragMode = new ViewLinkMode(hitNode, false, false, center);
break;
}
}
return;
} while (false);
Selecteds.Clear();
Selecteds.Add(hitNode);
MoveNodeToBack(hitNode);
}
else
{
if (!hasSelected)
{
SelectNode(hitNode);
}
}
}
else
{
if (hasSelected)
{
Selecteds.Remove(hitNode);
}
else
{
Selecteds.Add(hitNode);
MoveNodeToBack(hitNode);
}
}
}
}
private void OnEvent(Event e, Vector2 size)
{
if (e.type == EventType.MouseDown && e.button <= 1)
{
OnClick(e.control, e.button == 0);
e.Use();
return;
}
if (e.type == EventType.MouseUp)
{
if (DragMode != null && e.button == 0)
{
DragMode.OnDragEnd(this, Canvas.MouseInWorld);
DragMode = null;
e.Use();
return;
}
if (e.button == 1)
{
e.Use();
if (!ignoreRightUp)
{
OnMenu();
}
ignoreRightUp = false;
return;
}
}
if (e.type == EventType.MouseDrag)
{
if (DragMode != null && e.button == 0)
{
DragMode.OnDrag(this, Canvas.MouseInWorld);
e.Use();
return;
}
if (e.button == 2 || (e.button == 1 && Selecteds.Count == 0))
{
//移动View
Canvas.Pan(-e.delta);
e.Use();
ignoreRightUp = true;
return;
}
if (e.button == 0)
{
Rect rect = new Rect(Vector2.zero, size);
if (rect.Contains(e.mousePosition))
{
if (Selecteds.Count > 0 && !ReadOnly)
{
DragMode = new ViewNormalMoveMode(this, Canvas.PointInWorld);
}
else
{
DragMode = new ViewAreaSelectMode(this, Canvas.PointInWorld);
}
}
}
}
if (e.type == EventType.KeyDown)
{
if (e.keyCode == KeyCode.Delete && !ReadOnly)
{
if (Selecteds.Count > 0)
{
if (DeleteSelectedNode())
{
e.Use();
}
}
return;
}
bool control = (e.control || (Application.platform == RuntimePlatform.OSXEditor && e.command)) && !e.alt;
if (control && e.keyCode == KeyCode.D && !ReadOnly)
{
if (Duplicate())
{
e.Use();
return;
}
}
if (control && e.keyCode == KeyCode.C)
{
CopyNodes();
e.Use();
return;
}
if (control && e.keyCode == KeyCode.V && !ReadOnly)
{
PasteFromClipboard();
e.Use();
return;
}
if (control && e.keyCode == KeyCode.A)
{
Selecteds.Clear();
foreach (var node in Graph.Nodes)
{
Selecteds.Add(node);
}
e.Use();
return;
}
}
}